#include <openssl/evp.h>
#include <openssl/objects.h>
-static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
- unsigned char *iv,int enc);
+static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv,int enc);
static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- unsigned char *in, unsigned int inl);
+ const unsigned char *in, unsigned int inl);
static EVP_CIPHER d_xcbc_cipher=
{
NID_desx_cbc,
return(&d_xcbc_cipher);
}
-static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
- unsigned char *iv, int enc)
+static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
{
des_cblock *deskey = (des_cblock *)key;
- if (iv != NULL)
- memcpy(&(ctx->oiv[0]),iv,8);
- memcpy(&(ctx->iv[0]),&(ctx->oiv[0]),8);
- if (deskey != NULL)
- {
- des_set_key_unchecked(deskey,ctx->c.desx_cbc.ks);
- memcpy(&(ctx->c.desx_cbc.inw[0]),&(key[8]),8);
- memcpy(&(ctx->c.desx_cbc.outw[0]),&(key[16]),8);
- }
+ des_set_key_unchecked(deskey,ctx->c.desx_cbc.ks);
+ memcpy(&(ctx->c.desx_cbc.inw[0]),&(key[8]),8);
+ memcpy(&(ctx->c.desx_cbc.outw[0]),&(key[16]),8);
+
return 1;
}
static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- unsigned char *in, unsigned int inl)
+ const unsigned char *in, unsigned int inl)
{
des_xcbc_encrypt(in,out,inl,ctx->c.desx_cbc.ks,
(des_cblock *)&(ctx->iv[0]),